Ventilating apparatus for automobiles



Dec. 251, 1923.

J. T. SAINSBURY VENTILATING APPARATUS FOR AUTOMOBILES Filed Jan. 25. 1922 2 Sheets-Sheet &

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Dec. 25 1923.

J. T. SAINSBURY VENTILATING APPARATUS FOR AUTOMOBILES 2 Sheets-Sheet 2 Filed Jan. 25 1.922

Patented Dec. 25, 1923..

: lhdfiddt FEQO JES THOMAS SAINSBURY, 0E BUFFALO. NEW YORK, ASSIGNOR OF ONE-TH IRD TO GEORGE F. YATES, OF BUFFALO, NEW YORK.

VENTILATING APPARATUS FOR AUTOMOBILES.

Application filed January 25, 1922. Serial No. 531,815.

To all 70/ 10771 it may concern:

'Be it known that l, Janus THOMAS Slims- BURY, a citizen of the United States, residing in Buffalo. in the county of Erie and State of New York, have invented new and useful Improvements in Ventilating Apparatus for Automobiles, of which the following is a specification.

This invention relatesto a ventilating apparatus which is more particularly designed for use on automobiles and has for its objeot the production of an apparatus of this character whereby a ventilation of one or more compartments of the car may be effected by utilizing the power of the motor for this purpose.

In the accompanying drawings:

Figure 1 is a fragmentary vertical longitudinal section of a gas engine propelled motor vehicle equipped with my invention. Figure 2 is a fragmentary horizontal section of the same, on an enlarged scale, taken on line 2-2, Fig. -1. Figure 3 is a vertical cross section taken on line 33, Fig. 2.

Similar characters of reference refer to like parts throughout the severalviews.

My invention is applicable to automobiles of various designs that for example shown in the drawings, comprising a body having a horizontal bottom or floor 10, a vertical dash board 11 and an inclined foot board 12 connecting the bottom and dash board, and a gas operated motor or engine having a plurality of explosion or working cylinders 13, an exhaust manifold 14 which receives the hot spent gases from the several cylinders, and delivers the same to an exhaust pipe 60. leading to the rear of the car, and a horizontal shaft 15 which is driven by the motor and operates the radiator cooling fan in any suitable manner.

The air for ventilating andheating the automobile may be drawn either from the external atmosphere, or a compartment of the car or from both of these sources and passed through a jacket 16 arranged on top of the exhaust manifoldof which latter the jacket preferably forms an integral part. The air inlet 17 of this jacket is preferably arranged at the rear end thereof and its outlet 18 at the front end of the same.

Arranged lengthwise within the exhaust manifold is an air heating pipe 19 the front end of which is connected with the outlet 20 of an air propeller case 21 and the rear end of which is connected with a delivery pipe 22 adapted to discharge the heated air either to a compartment of the car or to the atmosphere. The-outlet of the jacket- 16 is connected by a pipe 23 with the inlet of the propeller case. The latter contains rotary fan blades of usual construction which are mounted "on the shaft 24 of the propeller and operated by a belt 25 passing around pulleys 26, 27 arranged on the fan shaft and the propeller shaft.

Any approved means may be employed for delivering the heated air from the delivery pipe 22 to the atmosphere or to, a compartment of the car, that shown'in the drawings being merely typical of one form of device suitable for this purpose and as there shown the same comprises two branch pipes 28, '29 the former leading from the delivery pipe 22, through the-bottom of the car into a compartment thereof and the latter leading to the atmosphere at the rear of the car, and a switch or gate valve 30 adapted to direct the air from the delivery pipe 22 either wholly into the car compart ment, or wholly to the atmosphere, or partly to both of these destinations. This switch valve is pivoted at its rear end to rock vertically and the same is shifted by making it so heavy that it drops by gravity while its upward movement is effected by a hand operated chain 31 connected with an arm 61 on the pivot of this valve and adapted to be held in different vertical positions by engaging one or another of the links of the chain with a hook 32 on an adjacent support of the car. By raising the switch valve the air from the heating pipe 19 is directed to the atmosphere at the rear of the car and by lowering the same this air is directed into the compartment of the car, while upon shifting this valve so that the same occupies an intermediate position the air will be de livered partly into this compartment and partly to the atmosphere.

Means are provided whereby the air su plied to the jacket of the exhaust manifo d is taken wholly from a compartment of the car or partly from such compartment and partly from the external atmosphere for a purpose which will presently appear. These means may be of various forms, but are preferably constructed as follows:

In rear of the dash board is arranged a regulating valve case which contains two horizontally swinging valves 34,35. Extending into one side of this casing is a suction pipe 36 which is provi'dedat'its inlet end within the valve case with a valve seat 37 while its discharge end connects with the inlet of the jacket and its intermediate part passes through the dash board. Be-y tween the dash board and the valve case 33' the suction pipe is provided with a plurality of perforations 38 whereby the interior of the same is constantly in communication with the compartment of thecar in rear of the dash board and which .have an aggregate area sufiicient to only partly supply the capacity of the blades in the propeller casing 21. The valve 34 moves toward and from the valve seat 37 and is.

a screw 41 which works in a lug 42 on'the valve casing and the extent of the opening movement of this valve under the action of this spring is determined by an adjustable stop screw 43 arranged in a lug 44- on the upper side ofthe valve. case and ar-. ranged to be engaged by the valve arm 40.

Through the opposite wall of this valve 'casing projectsan auxiliary air sup ly pipe 45 which has its outlet end arrange within this casing and forms a valve seat 46 which is adapted to be engaged by the valve 35 while its inlet end preferably projects downwardly through the floor or bottom of the car and to the external atmosphere. The valve may be adjusted by hand for regulating the position of the same relatively to the valve seat 46 and the amount of air which may be drawn through the auxiliary air supply pipe. The adjusting means for this purpose shown in the drawings consists of an upright shaft or stem 47 journaled' in suitable hearings on the regulating valve casing and provided on its upper part with atransverse pin 48, an adjusting arm 49 slidable vertically on the shaft 47 n and provided in its hub with a vertical slot 50 which receives the pin 48 while its free end is provided with a depending tooth 63 adapted to engage one or another of a segmental row of notches 51 on top of the regulating valve casing, and a spring 52 surrounding the shaft 47 and engaging at its opposite ends with the hub of the arm 49 andwith a head 53 at the upper end of the shaft 47,

In winter time both the valves 34 and 35 are opened so that the suction of the blades in the propeller casing draws air through 3 the jacket from the exterior of the car means of the auxiliary air supply pipe'45 and from the interior of the compartment of the car in rear of the dash board through the openings 38 in the air suction pipe 36. This air is heated as it passes through the jacket by reason of its proximity to the exhaust manifold andv is further heated upon being forced by the propeller through the heating pipe within the exhaustmanifold.

If at this time the switch valve is turned into its lowermost osition all the heated air will be directed? into a compartment of the car, but if this valve is raised part way then some of the hot air will pass rearwardly to the atmosphere and -only part of it will enter the car compartment. If the automobile is traveling ata high speed or the engine is racing,'the suction through the pipe 36 against the valve 34 will cause the. latter to'close more or less toward its seat 37 and thus cut ofi the supply of external air to the propeller and confine the supply more or less to the openings 38 in the suction pipe. When this occurs, less air proportionately is drawn by the propeller through the jacket and forced through the heating pipe within the exhaust manifold and as a consequence no appreciable increase in the temperature of the automobile compartment occurs and the passen gers at this time do not experience any discomfort from overheating of the respective compartment which otherwise might occur.

In the summer time the hand valve 35 is closed and the switch valve is raised so that air is only supplied from the compartment in which the perforations '38 of the suction pipe are arranged and thus operates to ventilate and cool the same and the air is discharged from the heating pipe directly to the atmosphere and thus avoids warming the compartment of the car. At this time the passage of air through the jacket and the exhaust manifold prevents excessive heating of the adjacent parts of the engine and reduces the tendency to carbonize the fuel within the working cylinders.

These means for heating. and ventilating pipe for drawing the same toward said valve seat, and an air propeller for drawing the air through said suction pipe.

An apparatus of the character described comprising an air propeller, a regu-' lating val e case, a suction pipe having its outlet connected with said propeller and having an inlet Within said case, an auto matic suction valve for controlling the inlet of said suction pipe, an auxiliary air supply pipe connecting said case with the exterior of the car, and a hand valve arranged on said case and controlling said auxiliary air supply pipe,

3. An apparatus of the character described comprising a regulating valve case, a suction pipe having an inlet Within said casing and openings outside of the same, an auxiliary air supply pipe opening into the regulating casing, means for automatically controlling the inlet of said suction pipe within said casing comprising a shaft journaled on said casing, a valve mounted on said shaft and movable toward and from said inlet of the suction pipe Within the casing, an arm arranged on said shaft, a spring connecting said arm with said casing, and a stop screw arranged on said casing and engaged by said arm, and means for regulating the passage of air from said auxiliary pipe into said casing. t

t. An apparatus of the character described comprising a regulating valve case, a suction pipe having an inlet. within said casing and openings outside of the same, an auxiliary air supply pipe opening into the regulating casing, means for automatically controlling, the inlet of said suction pipe within said casing comprising a shaft journaled on said casing. a valve mounted on said shaft and movable toward and from said inlet of the suction pipe within the,

casing, an arm arranged on said shaft, a spring connecting said arm with said casing, and a stop screw arranged on said casing and engaged by said arm, and means for regulating the passage of air from said auxiliary pipe into said casing comprising a shaft journaled on said casing, a valve arranged on the last-mentioned shaft and movable toward and from the outlet of the auxiliary pipe within said casing, an adjusting arm mounted on said last-mentioned shaft so as to be compelled to move therewith but free to move lengthwise therein, and provided with a tooth, a notched segment arranged on the casing and adapted to be engaged by said tooth, and a spring surrounding said last mentioned shaft and engaging at one end with said arm and at its o thgr end with a head on said last-mentioned sna t.

JAMES THOMAS SAINSBURY. 

